Share 'Hooking up iPod Touch for projection'

Hi there, Just joined this group and am looking forward to learning many things from everyone. I plan to purchase an iPod Touch for personal use and want to use it as a teaching tool in class (I teach English). My biggest hurdles (please forgive me as I am brand new to the iPod Touch world) are:   1) PC users: I am principally a PC user and wondered if there are an apps (free or otherwise) that w…